Date: 3/23/25 8:25 pm
From: <reports...>
Subject: [cobirds] Dinosaur Ridge - Denver Field Ornithologists (23 Mar 2025) 51 Raptors
Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA
Daily Raptor Counts: Mar 23, 2025
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Species Day's Count Month Total Season Total
------------------ ----------- -------------- --------------
Black Vulture 0 0 0
Turkey Vulture 0 0 0
Osprey 0 0 0
Bald Eagle 5 20 20
Northern Harrier 3 5 5
Sharp-shinned Hawk 2 4 4
Cooper's Hawk 8 14 14
American Goshawk 0 0 0
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 0 0
Red-tailed Hawk 25 154 154
Rough-legged Hawk 0 2 2
Swainson's Hawk 0 0 0
Ferruginous Hawk 3 13 13
Golden Eagle 1 13 13
American Kestrel 3 5 5
Merlin 1 3 3
Peregrine Falcon 0 0 0
Prairie Falcon 0 2 2
Mississippi Kite 0 0 0
Unknown Accipitrine 0 0 0
Unknown Buteo 0 0 0
Unknown Falcon 0 0 0
Unknown Eagle 0 0 0
Unknown Raptor 0 0 0

Total: 51 235 235
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Observation start time: 09:00:00
Observation end time: 17:00:00
Total observation time: 8 hours

Official Counter: Emma Riley

Observers: Archer Silverman, Cayce Gulbransen , Chris Gulbransen ,
Diana Hornick, Laura Farnsworth, Ric Olson

Visitors:
Thank you to everyone who came out today to help spot birds and enjoy a day
of migration!

We had a total of 24 visitors to the ridge today. We could see trails full
of people at Matthew/Winters and on Green Mtn, but Dakota Ridge was a bit
slow today for a weekend.


Weather:
Today was our first warm/low wind day in a few days and felt like a treat.
Winds stayed out of the SE/E for most of the day, staying at low speeds.
Clouds were present all day to varying degrees, often giving us great
backdrops to spot migrants.

Raptor Observations:
Today was our second best day of the season so far with a great spread of
migrants! The highlights of the day include a few NH coming through one
after the other, with 2 up in different areas at once. We also counted a
few FH today, one of which we spotted as we began the hike out. Falcons
seem to be beginning their migration, with all 4 falcon species seen today,
but only the small ones migrating. Migrants came through consistently for
most of the day keeping us busy.

PG were reported today at Red Rocks, followed by a non-migrant PG in the
afternoon spotted first in that area, leading us to believe the local
scrape has been claimed by the Peregrine's once again.

Along with the PG, we saw PR, GE, BE, RT, and AK locals today.

Non-raptor Observations:
White-throated Swift 1, Black-billed Magpie 1, Common Raven 1, Mountain
Bluebird 43, House Finch 3

Predictions:
Tomorrow's temperatures will be higher than today's but so will the winds,
making it feel cooler. Winds are expected out of the NW, potentially
bringing a slower flight than today. We have many species that still have
not been seen migrating through this year that will be seen any day!
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Report submitted by Official Counter (<j.f.peters58...>)
Dinosaur Ridge - Denver Field Ornithologists information may be found at:
www.dinosaurridgehawkwatch.org


More site information at hawkcount.org: https://hawkcount.org/siteinfo.php?rsite=123

Site Description:
Dinosaur Ridge is the only regularly staffed hawk watch in Colorado and is
the best place in the world to see migrating Ferruginous Hawks. Hawk
watchers may see 17 species of migrating raptors; and it is an excellent
site to see rare dark morph buteos including Broad-winged hawk,
Swainson’s hawk, Ferruginous hawk, Rough-legged hawk and Red-tailed Hawk.
Other raptors we see include Golden and Bald Eagles, Northern harrier,
Osprey, Peregrine Falcons, Prairie Falcons, Cooper's and Sharp-shinned
Hawks, American Kestrels, Merlin, and Turkey Vultures. American Goshawk is
uncommon but also counted each season. Non-raptor species include Rock
Wren, Bushtit, Western Bluebird, Sandhill Crane, White-throated Swift,
American White Pelican, and Dusky Grouse. Birders of any skill level are
always welcome. The hawk watch at Dinosaur Ridge is staffed by Hawk
Counter(s) and volunteers from March through early May.

Directions to site:
From exit 259 on I-70 towards Morrison, drive south under freeway and take
left into first parking lot, the Stegosaurus lot. Follow hawk watch signs
from the southwest end of the parking lot to the hawk watch site. The hike
starts heading east on an old two-track and quickly turns south onto a
trail on the west side of the ridge. When the trail nears the top of the
ridge, turn left, and walk to the flat area at the crest of the ridge.
(Distance: 0.56 miles, Elevation gain: 259 feet)


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